Paper-coating machine



Feb. 11, 1930. H. NENDORF ET AL PAPER COATI NG MACHINE Filed Nov. 10, 1928 Patented Feb. 11, 1930 UNITED, STATES PATENT OFFICE HENRY NENDOBF AND ARTHUR W. COLE, OF KALAMAZOO, MICHIGAN, ASSIGNORS '10 REX PAPER COMPANY, OF KALAMAZOO, MICHIGAN PAPER-COATING MACHINE Application filed November 10, 1928. Serial No. 318,356-

colors do not overlap.

Objects pertaining to details and economies of our invention will definitely appear from the description to follow. The invention is defined in the claims.

A structure which embodies the features of our invention. is clearly illustrated in the accompanying drawing in which:

Fig. 1 is a fragmentary perspective view of our improved coating machine. Parts which are not necessary to show the relation of our improvements are omitted, certain parts are shown in full lines and others are shown in dotted lines for convenience in illustration.

Fig. 2 is a fragmentary view partially in vertical transverse section on line 2-2 of Fig. 3.

Fig. 3 is a fragmentary view partially in longitudinal section. I

We have illustrated only the front end of a coating machine and have not attempted to illustrate in detail or describe the driving connections asthese will be understood by those skilled in the art. 7 I I 1 represents the web of paper to be coated and 2'the roll of paper. At the front end of the machine we mount a coating pan 3 having spaced partitions 4 therein providing a pair of coating receptacles or compartments 5 and a narrow intermediate compartment 6. This intermediate compartment has a drain hole 7 at the bottom thereof.

The coating feed rollers 8 are mounted on a shaft 9 which extends above the intermediate compartment 6. On this shaft we mount a disk 10 to depend into the intermediate compartment. Any of the coating material traveling along the shaft 9 from the coating rollers is caught by this disk 10 and drops therefrom into the compartment 6, from which it is discharged throughthe drain opening 7.

The rotary coating brush 11 is mounted in coacting relation to the coating feed rollers and delivers the coating material to the paper as it passes over the paper supporting drum 12. The periphery of the disk 10 projects beyond the peripheries of the rollers 8 so that the periphery of the disk embeds itself into the fibers of the brush.

The "scrubber brushes 13. are arranged to act upon the paper as it passes over the drum, these brushes being arranged in pairs end to end and there being a space between their inner ends as shown in Fig. 1. These brushes are carried by reciprocating bars 14. The means for reciprocating the bars is not illustrated and described in detail.

At the rear of the 'drum 12 is a conveyor apron 15 to which the paper passes from the drum 12. Finishing brushes are arranged to act on the paper while it is supported by the apron, one of these brushes being shown at disclosure made will enable those skilled in the art to embody or adapt our improvements as may be desired.

Having thus described our invention, what we claim as new and desire to secure by Letters Patent, is:

1. The combination in a paper coating machine, of a coating pan having spaced partitio'ns providing coating compartments and a narrow intermediate compartment, said intermediate compartment having a drain opening in the bottom thereof, feed rollers disposed in operative relation to said coating compartments a shaft for said feed rollers, a rotary coating brush operatively associated with both of said feed rollers, and a disk mounted on said feed roller shaft to depend with said feed rollers,

into said intermediate compartment and projecting beyond the peripheries of the feed roller into the fibers of said coating brush.

2. The combination in a paper coating machine, of a coating pan having spaced partitions providing coating compartments and a narrow intermediate compartment, said intermediate compartment having a drain opening in the bottom thereof, feed rollers disposed in operative relation to said coating compartments, a shaft for said feed rollers, a rotary coating brush operatively associated and a disk mounted on said feed roller shaft to depend into said intermediate compartment.

3. The combination in a paper coating machine of spaced coating receptacles, feed rollers operatively associated with said coating receptacles, a shaft for said feed rollers, a rotary coating brush operatively associated with both of said feed rollers, and a disk mounted on said feed roller shaft between and in spaced relation to the adjacent ends of said feed rollers and projecting beyond the peri heries thereof into the fibers of said coating brush.

4. The combination in a paper coating machine, of spaced coating receptacles, feed rollers operatively associated with said coating receptacles, a shaft for said feed rollers, a rotary coating brush operatively associated with said feed rollers, and a disk mounted on said feed roller shaft between and in spaced relation to the adjacent ends of said feed rollers.

5. The combination in a paper coating machine, of feed rollers arranged in alinement and in spaced relation, a disk disposed between said feed rollers and rotatable therewith, and a rotary brush operatively associated with said feed rollers, said disk projecting beyond the peripheries of the eed rollers into the fibers of said brush.

6. The combination in a paper coating machine, of feed rollers arranged in alinement and in spaced relation, a disk disposed between said feed rollers and rotatable therewith, and a, rotary brush operatively associated with said feed rollers.

7. The combination in a paper coating machine, of a coating pan having spaced partitions providing coating compartments and an intermediate compartment, feed rollers dis posed in operative relation to said coating compartment, a shaft for said feed rollers extending across said intermediate compartment, and a disk mounted on said shaft to depend into said intermediate compartment.

In witness whereof we have hereunto set our hands.

- HENRY NENDORF.

ARTHUR W. COLE. 

